## Net Current in Utilities

After purchasing a gaussmeter, an electrician was surprised to discover an elevated magnetic field throughout his entire driveway and a portion of his home. Upon learning that the field did not de­cline when he shut off the power to his home at the main breaker, he concluded that the source of the field was from […]

## Electromagnetic Fields: Challenging Unsafe Limits

r Take on the military, government, electric utili­ties, appliance and cell-phone manufacturers, and the owners of television, radio, and other high fre­quency antennas and you’re in for a major fight. The stakes are huge because since 2003 insurance companies no longer cover eventual (because still unproven) damages caused by electromagnetic fields (EMFs). These are emitted […]

## Magnetic Fields

The importance of checking the electrical instal­lation under load with a gaussmeter before oc­cupancy is demonstrated in this case study. An electromagneticallysensitiveclient consulted with John by telephone throughout the construction of her home, which was built according to specifi­cations similar to those outlined in this book. After the client moved into her new home, she […]

## Magnetic Fields from Panels and Subpanels

Many electrical panels and subpanels emit substantially elevated magnetic fields. This problem arises because breaker and neutral bus bars are configured so that the neutral and hot wires are separated once fastened in place, causing magnetic fields as discussed earlier. Some electrical panels are configured with the neutral bus bar split to run alongside the […]

## Magnetic Fields from Three — and Four-Way Switches

Lights switched from two different locations are called three-way switches. When lights are switched from three or more locations, they ground ndr \$ho/Ui   adwg^d (joined^) from Separate ‘circuit   в   deafer A   ^eker c||   trow б^рйгаге cirom’te Kepir е>е£йг<а(ге   nfr   10 , greater 0   A: 1/2 switched outlet. […]

## Electrical

Electromagnetic Fields Electric and magnetic fields are commonly discussed as if they were a single entity termed electromagnetic fields or EMFs. In fact, the two phenomena, although interrelated, are distinctly different and they will be discussed separately in this chapter. Chart 16.1 presents a comparison of the two. Magnetic Fields Basic Home Wiring and Net […]

## Air Filtration

The addition of filters to ventilation and forced-air heating and cooling systems allows for greater control of air quality. As discussed above, indoor air is often too polluted to prop­erly nourish occupants. The first line of defense against such pollutants is to provide an ample supply of fresh outdoor air through ventila­tion. Unfortunately, “fresh” air, […]

## Ventilation

Until the 1960s, ventilation in homes occurred naturally, obviating the need for intentional ventilation systems. Homes were loosely built, allowing enough outside air to make its way through the home to keep it fresh. By some ac­counts, this loose construction contributed to as many as three to four air exchanges per hour. Although there were […]

## Combined Heating and Cooling Systems

Heat pumps are far more energy efficient than electric resistance heat and can be used for both heating and cooling. Heat pumps extract heat from outside air or, in some cases, from a water source. Air-source heat pumps are most common in areas where winter tempera­tures seldom fall below 30 degrees Fahrenheit and where summer […]

## The Ideal Heating for Room Climate and Health

Because humans do not have the ability to with­stand the natural elements, we wear clothes and build shelters. In cold climates we heat those shel­ters. Many systems have been invented for heating the home, but not all systems are created equal. After examining the criteria that create health and a comfortable indoor climate, I chose […]